Which of the following gives the best example of barriers to entry due to absolute cost advantages $?$ Mr$.$ Smith controls the only liquor license issued in Hamblen County $,$ TN $.$ Great Lakes Steel is able to procure iron ore at a cheaper cost per ton compared to existing and potential rivals $.$ tel's dominance is $($ partly $)$ explained by the realization of extensive economies of scale in the production of microprocesso try into the massage parlor business is tightly regulated in many states $.$